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From: Ohad Ben-Cohen <ohad@wizery.com>
To: <linux-wireless@vger.kernel.org>, <linux-mmc@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	Luciano Coelho <luciano.coelho@nokia.com>,
	<akpm@linux-foundation.org>, Ido Yariv <ido@wizery.com>,
	San Mehat <san@google.com>,
	Roger Quadros <roger.quadros@nokia.com>,
	Nicolas Pitre <nico@fluxnic.net>,
	Gao Yunpeng <yunpeng.gao@intel.com>,
	Ohad Ben-Cohen <ohad@wizery.com>
Subject: [RFC/PATCH 2/6] sdio: add power_restore support
Date: Wed, 11 Aug 2010 16:19:26 +0300	[thread overview]
Message-ID: <1281532770-27545-3-git-send-email-ohad@wizery.com> (raw)
In-Reply-To: <1281532770-27545-1-git-send-email-ohad@wizery.com>

Add a power_restore handler to the SDIO bus ops,
in order to support waking up SDIO cards that
were powered off by runtime pm.

Note: this approach would also require changing
the power_restore/save bus handlers to support
a return value.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
---
 drivers/mmc/core/sdio.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 645f173..ddbb9d3 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -511,11 +511,27 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	return err;
 }
 
+static void mmc_sdio_power_restore(struct mmc_host *host)
+{
+	int err;
+
+	BUG_ON(!host);
+	BUG_ON(!host->card);
+
+	mmc_claim_host(host);
+	err = mmc_sdio_init_card(host, host->ocr, host->card,
+			(host->pm_flags & MMC_PM_KEEP_POWER));
+	if (!err && host->sdio_irqs)
+		mmc_signal_sdio_irq(host);
+	mmc_release_host(host);
+}
+
 static const struct mmc_bus_ops mmc_sdio_ops = {
 	.remove = mmc_sdio_remove,
 	.detect = mmc_sdio_detect,
 	.suspend = mmc_sdio_suspend,
 	.resume = mmc_sdio_resume,
+	.power_restore = mmc_sdio_power_restore,
 };
 
 
-- 
1.7.0.4


WARNING: multiple messages have this Message-ID (diff)
From: Ohad Ben-Cohen <ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>
To: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Luciano Coelho
	<luciano.coelho-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>,
	akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
	Ido Yariv <ido-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>,
	San Mehat <san-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
	Roger Quadros
	<roger.quadros-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>,
	Nicolas Pitre <nico-vtqb6HGKxmzR7s880joybQ@public.gmane.org>,
	Gao Yunpeng <yunpeng.gao-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Ohad Ben-Cohen <ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>
Subject: [RFC/PATCH 2/6] sdio: add power_restore support
Date: Wed, 11 Aug 2010 16:19:26 +0300	[thread overview]
Message-ID: <1281532770-27545-3-git-send-email-ohad@wizery.com> (raw)
In-Reply-To: <1281532770-27545-1-git-send-email-ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>

Add a power_restore handler to the SDIO bus ops,
in order to support waking up SDIO cards that
were powered off by runtime pm.

Note: this approach would also require changing
the power_restore/save bus handlers to support
a return value.

Signed-off-by: Ohad Ben-Cohen <ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>
---
 drivers/mmc/core/sdio.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 645f173..ddbb9d3 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -511,11 +511,27 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	return err;
 }
 
+static void mmc_sdio_power_restore(struct mmc_host *host)
+{
+	int err;
+
+	BUG_ON(!host);
+	BUG_ON(!host->card);
+
+	mmc_claim_host(host);
+	err = mmc_sdio_init_card(host, host->ocr, host->card,
+			(host->pm_flags & MMC_PM_KEEP_POWER));
+	if (!err && host->sdio_irqs)
+		mmc_signal_sdio_irq(host);
+	mmc_release_host(host);
+}
+
 static const struct mmc_bus_ops mmc_sdio_ops = {
 	.remove = mmc_sdio_remove,
 	.detect = mmc_sdio_detect,
 	.suspend = mmc_sdio_suspend,
 	.resume = mmc_sdio_resume,
+	.power_restore = mmc_sdio_power_restore,
 };
 
 
-- 
1.7.0.4

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WARNING: multiple messages have this Message-ID (diff)
From: ohad@wizery.com (Ohad Ben-Cohen)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC/PATCH 2/6] sdio: add power_restore support
Date: Wed, 11 Aug 2010 16:19:26 +0300	[thread overview]
Message-ID: <1281532770-27545-3-git-send-email-ohad@wizery.com> (raw)
In-Reply-To: <1281532770-27545-1-git-send-email-ohad@wizery.com>

Add a power_restore handler to the SDIO bus ops,
in order to support waking up SDIO cards that
were powered off by runtime pm.

Note: this approach would also require changing
the power_restore/save bus handlers to support
a return value.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
---
 drivers/mmc/core/sdio.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 645f173..ddbb9d3 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -511,11 +511,27 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	return err;
 }
 
+static void mmc_sdio_power_restore(struct mmc_host *host)
+{
+	int err;
+
+	BUG_ON(!host);
+	BUG_ON(!host->card);
+
+	mmc_claim_host(host);
+	err = mmc_sdio_init_card(host, host->ocr, host->card,
+			(host->pm_flags & MMC_PM_KEEP_POWER));
+	if (!err && host->sdio_irqs)
+		mmc_signal_sdio_irq(host);
+	mmc_release_host(host);
+}
+
 static const struct mmc_bus_ops mmc_sdio_ops = {
 	.remove = mmc_sdio_remove,
 	.detect = mmc_sdio_detect,
 	.suspend = mmc_sdio_suspend,
 	.resume = mmc_sdio_resume,
+	.power_restore = mmc_sdio_power_restore,
 };
 
 
-- 
1.7.0.4

  parent reply	other threads:[~2010-08-11 13:19 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-11 13:19 [RFC 0/6] adding SDIO Runtime PM support Ohad Ben-Cohen
2010-08-11 13:19 ` Ohad Ben-Cohen
2010-08-11 13:19 ` Ohad Ben-Cohen
2010-08-11 13:19 ` [RFC/PATCH 1/6] mmc: sdio: fully reconfigure oldcard on resume Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19 ` Ohad Ben-Cohen [this message]
2010-08-11 13:19   ` [RFC/PATCH 2/6] sdio: add power_restore support Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19 ` [RFC/PATCH 3/6] mmc: add general runtime PM support Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-26  9:42   ` Gao, Yunpeng
2010-08-26  9:42     ` Gao, Yunpeng
2010-09-01 20:08     ` Ohad Ben-Cohen
2010-09-01 20:08       ` Ohad Ben-Cohen
2010-08-11 13:19 ` [RFC/PATCH 4/6] sdio: " Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19 ` [RFC/PATCH 5/6] sdio: enable Runtime PM for SDIO cards Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19 ` [RFC/PATCH 6/6] wireless: wl1271_sdio: enable Runtime PM Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen
2010-08-11 13:19   ` Ohad Ben-Cohen

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